Article

OBJECTIVE: To examine the effect of eccentric endurance training on exercise
capacities in patients with coronary artery disease.
DESIGN: Randomized parallel
group controlled study. SETTING: Cardiac rehabilitation unit, Dijon University
Hospital. PARTICIPANTS: Fourteen patients with stable coronary artery disease
after percutaneous coronary intervention. INTERVENTION: Patients followed 15
sessions of training (1 session per day, 3 days a week), either in the concentric
group, following a standard programme, or in the eccentric group, performing
eccentric resistance exercises using both lower limbs on a specifically designed
ergometer. Symptom-limited Vo2, peak workload, isometric
strength of leg extensor and ankle plantar flexors, distance covered during the
6-minute walk test and time to perform the 200-m fast walk test in both groups,
before and after the training period. RESULTS: Patients did not report any
adverse effects and were highly compliant. All measured parameters improved in
eccentric and concentric group, except for 200-m fast walk test: symptom-limited
Vo2 (+14.2% versus +4.6%), peak workload (+30.8% versus +19.3%), 6-minute walk
test distance walked (+12.6% versus +10.1%) and leg extensor strength (+7% versus
+13%) improved to a similar degree in both groups (P < 0.01); ankle plantar
flexor strength improved in both groups with a significantly greater increase in
the eccentric group (+17% versus +7%, P < 0.05). CONCLUSION: Patients with stable
coronary artery disease can safely engage in eccentric endurance training, which
appears to be as efficient as usual concentric training, with reduced oxygen
consumption.

Langue : ANGLAIS